EXIT THIS SURVEY Exit this survey Subject content: Viscous Flow and Boundary Layers 1. 100% of survey complete. * 1. Please think how you learned this section. What did you find to be helpful? Please tick all that apply. 1. Read the Powerpoint notes. 2. Wrote down the notes on paper to see if you agreed with the logic 3. Read the textbook 4. Tried the examples in the Solved Problems library 5. Solved old tests given by the instructor 6. Asked friends * 2. Please list the top 5 concepts that you learned in this module. 1. 2. 3. 4. 5. * 3. What concepts pose(d) difficulties for you? Please discuss, and also how you solved the difficulty if you did. * 4. Explain as to a 6th grader, the viscous terms on the right hand side of the differential form of the momentum conservation equation. How does the concept of shear lead to these terms? What do they have to do with conservation of momentum? * 5. What assumption / postulate changes the momentum conservation equation to the Navier-Stokes equation? * 6. Why does the Couette flow problem allow an analytical solution of the Navier-Stokes equation, whereas the equation is usually too complicated to solve analytically? * 7. Why does a fully developed pipe flow develop a parabolic velocity profile? * 8. Why does it make sense to transform coordinates from chordwise distance to the angle theta to solve the equation of thin airfoil theory? * 9. Describe in words how, given the equation to the camber line of an airfoil, and the angle of attack, you would proceed to determine all the coefficients of the Fourier series representing the vortex sheet strength. * 10. Consider a boundary layer on a flat plate, at point on the surface, at a moderate Reynolds number (say 100,000). Assume laminar boundary layer. Suppose the laminar boundary layer thickness is 10 in whatever units. Estimate the thickness of the displacement thickness. State the basis of your estimates. Done